linux-kernel - [PATCH 0/2] Enable UFS ICE clock scaling

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Message-Id: <20251001-enable-ufs-ice-clock-scaling-v1-0-ec956160b696@oss.qualcomm.com>
Date: Wed, 01 Oct 2025 17:08:18 +0530
From: Abhinaba Rakshit <abhinaba.rakshit@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Manivannan Sadhasivam <mani@...nel.org>,
        "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-scsi@...r.kernel.org,
        Abhinaba Rakshit <abhinaba.rakshit@....qualcomm.com>
Subject: [PATCH 0/2] Enable UFS ICE clock scaling

This API enables dynamic scaling of the ICE (Inline Crypto Engine) clock,
which is tightly integrated with the host controller. It is invoked by the UFS 
host controller driver in response to clock scaling requests, ensuring
coordination between ICE and the host controller.

This API helps prevent degradation in storage read/write KPIs,
maintaining consistent I/O throughput performance.

The implementation has been tested using tiotest to verify that enabling ICE
does not negatively impact host controller I/O performance during
read/write operations.

Signed-off-by: Abhinaba Rakshit <abhinaba.rakshit@....qualcomm.com>
---
Abhinaba Rakshit (2):
      soc: qcom: ice: enable ICE clock scaling API
      ufs: host: scale ICE clock

 drivers/soc/qcom/ice.c      | 25 +++++++++++++++++++++++++
 drivers/ufs/host/ufs-qcom.c | 14 ++++++++++++++
 include/soc/qcom/ice.h      |  1 +
 3 files changed, 40 insertions(+)
---
base-commit: 3b9b1f8df454caa453c7fb07689064edb2eda90a
change-id: 20251001-enable-ufs-ice-clock-scaling-9c55598295f6

Best regards,
-- 
Abhinaba Rakshit <abhinaba.rakshit@....qualcomm.com>